ToneShaper

Name: ToneShaper
Author: Analog Obsession

by Analog Obsession · EQ · Passive tone and body control

Not rated yet

ToneShaper is a passive-style tone and body control plugin from Analog Obsession for shaping the tonal balance of a signal.

It was released on 23 September 2026 for macOS and Windows and is free, with downloads through the developer's Patreon.

Best for: Guitars, Bass, Keys & Synths, Acoustic Instruments, Mix Bus. Genres: all genres.

Keywords: free, full mix, clean, drums, bass, beginner-friendly, bright, bus processing, dark, minimal controls, mix bus, mixing, simple, single knob, static, transparent.

What it does

ToneShaper is a free "passive tone and body control" plugin from Analog Obsession. It is a deliberately small tool: a passive tone stage for tilting the balance and weight of a sound, without added saturation.

Tone: moves the sound from darker to brighter in one control.
Body: adds or removes fullness and weight.
Output: level compensation, so you can match levels after a tone change.
Fully passive design: the passive circuit causes around 20 dB of gain loss, which is made up with a clean boost.
No coloration: there are no non-linear elements, so it shapes tone without intentionally adding harmonics.

ToneShaper was released in September 2026. It is free and is downloaded from Analog Obsession's Patreon page. No version number is given.

Source: Analog Obsession product page

When to use it

ToneShaper is the better pick for fast, broad tone moves when you don't want to think in bands and frequencies. Compared with Pro-Q 4 or TDR Nova it has no bands, analyser or dynamic EQ; it trades precision for two musical controls. It is closer to the PuigTec EQs or the Pultec Passive EQ Collection in spirit, but cleaner, since it adds no tube colour, and it costs nothing. Next to TDR VOS SlickEQ, another simple mix EQ, it is even more stripped back, with just Tone and Body.

Best for: quick tonal tilts and adding or removing body on drum buses, instrument groups and full mixes, on a zero budget.
Genres: any.
Look elsewhere if: you need precise bands, dynamic EQ or analysis (Pro-Q 4, TDR Nova), or want passive-EQ colour (Pultec Passive EQ Collection).
Tip: judge changes in the full mix rather than solo, and use Output to level-match before comparing.

What producers say

Early coverage treats it as a useful, focused freebie rather than a do-everything EQ.

Greg Kocis review: liked that it "doesn't try to overwhelm you" with controls and found it useful on drum buses and in full-mix contexts.
Scope: the same review noted it is not trying to be a channel strip or console emulation, and raised no real criticisms.

Where to buy

Analog Obsession (Patreon): Free

Similar plugins

bloom by oeksound · Adaptive tone shaper · $219
FireEQ by United Plugins · Mix EQ with dynamics and M/S · $89
Gullfoss by Soundtheory · Intelligent automatic EQ · $199
Fire The Tilt by Acustica Audio · Tilt and smile EQ
Carve EQ by Kilohearts · 31-band graphic EQ · $79
Chokidar3 EQ by Noisebud · Mastering EQ
Instinct EQ by Black Salt Audio · Ear-first EQ without numbers · $59
BALANCE by Zynaptiq · Adaptive target EQ · $149
Pulsatec by D16 Group · Passive tube EQ · $89
Blue Tubes Equalizer BX2S by Nomad Factory · Baxandall bass/treble tone EQ · $9

All EQs